[IDV #XDR-492323]: IDV - View Displays List

Hi Eric-

The latest nightly build will only show legends for those
displays that are set visible.  However, there will be a
gap if there is no display for a particular timestep.

Don

> I tried to send this once, but was logged out of the system.
> I apologize if you get two responses.  Hopefully, they'll
> be the  same. ;-)
> 
> > Institution: University of Illinois at Urbana-Champaign
> > Package Version: 2.3 build date:2007-08-15 19:04 UTC
> > Operating System: Linux
> > Hardware Information: Java: home: /opt/idv-2.3/jre version: 1.5.0_11 
> > j3d:1.3.1
> > Inquiry: I have created a bundle that loads 17 fields from traditional NCEP 
> > model output.  In
> > order to make the current displays readable for my audience, I checked 
> > "Show Display List"
> > under the "View" tab of "Edit" - "Preferences."  At first, ALL displays are 
> > listed, regardless
> > of which ones are actually being displayed.  After checking and unchecking 
> > the fields
> > not being displayed at the time, the list is reduced to just the current 
> > displays.
> 
> Oops, thought I had fixed that one a while back.  Thanks for finding
> this.  The fix will be in tomorrow night's build.  This should fix
> the other problem you reported as well.
> 
> > However, it seems that each field has a designated line number in the list 
> > that
> > is displayed.  For example, IPV and Omega appear near the top of the 
> > original list
> > of all 17 fields that are listed upon checking "Show Display List."  If I 
> > only
> > want to show these two fields, they remain listed about 15 lines above the 
> > bottom
> > of the display window, right over CONUS.  I assume it would
> > be an easy fix to have the current displays default to the bottom of the 
> > display
> > window to prevent blocking the visualization.  When a display is unchecked 
> > (i.e., not
> > displayed), its line in the list should be entirely removed, and, given 
> > displays listed
> > above, these should each be moved down one line.  When a display is 
> > checked, its
> > list location should be defaulted to the line immediately above the top 
> > display in the list,
> > or at the bottom of the window if no other displays are current.  I have a
> > bundle which demonstrates this problem; please respond if you would like it 
> > to
> > investigate these two issues.  THANKS!
> 
> While there is an "easy fix" for this, the overhead might be worse
> than the cure.  There is no performance hit to toggle the visibility,
> but reordering the displays will cause a re-rendering for all the
> display list items.
> 
> However, I've implemented the change and will play around with it
> and get some feedback from others on this.  There might be some more
> we can do so only those things that need to be reordered will be.
> 
> Another option would be to use the Edit-Preferences to turn off the
> Show In Display List option for most of the displays, but pick one
> for each of the Display Groups you turn off and on.  Use a custom
> Display List label that explains what is in that group.  That way
> instead of having lots of labels, you condense the number on the
> screen.  It's a little more work, but might help in either case.
> 
> Don
> 


Ticket Details
===================
Ticket ID: XDR-492323
Department: Support IDV
Priority: Normal
Status: Open